The invention concerns a audio encoder whereof the first coding stage (6) includes an coding hub (8) receiving a base audio signal (S0) and generating parameters (QS0) coding the base signal and an error signal (E0). A filter bank (9) breaks down the error signals into sub-bands. A second coding stage includes modules (CE0m) respectively coding the error signal sub-band components (E0m), generating parameters (QE0) coding said components. A multiplexer (5) receives the base signal coding parameters and the error signal sub-band components coding parameters, and forms an binary output flow ( PHI ).
申请公布号
DE69803457(D1)
申请公布日期
2002.02.28
申请号
DE1998603457
申请日期
1998.07.01
申请人
MATRA NORTEL COMMUNICATIONS, QUIMPER
发明人
RICHARD, GAEL;MURGIA, CARLO;LE DORE, ARIANE;LOCKWOOD, PHILIP